Hi I'm relatively new to arduino and I was hoping someone might be able to help...
My goal is to use an accelerometer and neopixels so that every time you shake it, the neopixel changes colour.
I have basic coding knowledge but struggling to find any real solution. If anyone could give me some advice or direct me to code, that would be great!
this is what i currently have but i don't know if its worth anything, neopixels work but it isn't reacting to the accelerometer ..
#include <Adafruit_NeoPixel.h>
#ifdef AVR
#include <avr/power.h>
#endif
// Which pin on the Arduino is connected to the NeoPixels?
// On a Trinket or Gemma we suggest changing this to 1
#define PIN 2
// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS 1
// When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals.
// Note that for older NeoPixel strips you might need to change the third parameter--see the strandtest
// example for more information on possible values.
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
int delayval = 1000; // delay for half a second
int groundpin = 18; // analog input pin 4
int powerpin = 19; // analog input pin 5
int xpin = A3; // x-axis of the accelerometer
int ypin = A2; // y-axis
int zpin = A1; // z-axis (only on 3-axis models)
long xy_max = 470;
long xy_min = 550;
int forwardPin = 9;
int backPin = 10;
int leftPin = 11;
int rightPin = 12;
int centerPin = 8;
long x = 0;
long y = 0;
void setup()
{
Serial.begin(9600);
pinMode(forwardPin, OUTPUT);
pinMode(backPin, OUTPUT);
pinMode(leftPin, OUTPUT);
pinMode(rightPin, OUTPUT);
pinMode(groundpin, OUTPUT);
pinMode(powerpin, OUTPUT);
digitalWrite(groundpin, LOW);
digitalWrite(powerpin, HIGH);
#if defined (AVR_ATtiny85)
if (F_CPU == 8000000) clock_prescale_set(clock_div_1);
#endif
pixels.begin(); // This initializes the NeoPixel library.
}
void loop()
{
for(int i=0;i<NUMPIXELS;i++){
x = analogRead(xpin);
y = analogRead(ypin);
digitalWrite(centerPin, LOW);
if (y < xy_max) { //backwards
pixels.setPixelColor(i, pixels.Color(0,150,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
} else{
pixels.setPixelColor(i, pixels.Color(0,0,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay
}
if (y > xy_min) { //forwards
pixels.setPixelColor(i, pixels.Color(0,150,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
} else {
pixels.setPixelColor(i, pixels.Color(0,0,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
if (x > xy_min) { //left
pixels.setPixelColor(i, pixels.Color(150,0,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
} else {
pixels.setPixelColor(i, pixels.Color(150,0,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
if (x < xy_max) { //right
pixels.setPixelColor(i, pixels.Color(0,0,150));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
} else{
pixels.setPixelColor(i, pixels.Color(0,0,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
if (y >= xy_max && y <= xy_min && x <= xy_min && x >= xy_max) { // nothing
pixels.setPixelColor(i, pixels.Color(0,0,0));
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
}
}